I recently posted photos of a little lunch shack in a small village in a rural area near where wildlife tours are provided. The shack was developed to provide lunches for tourists after they finish their morning wildlife river excursions.
Although the lunch shack is rather primitive, it nevertheless provides "facilities" with plumbing for tourists. Sandals on the door mark the women's room and a machete marks the men's room. There are also decent restroom facilities at the national park where tourists board and unload from the boats used for wildlife viewing excursions.
Tourism is Costa Rica's number one industry, so the government and the free market have developed tourist services, including the many tour operators who provide vans and guides to take tourists to scenic places and to enjoy various activities, places for lunch, shopping, road side stops, and "facilities" for use by tourists.